On 9/8/2015 1:02 AM, Roger Bell_West wrote:
On Mon, Sep 07, 2015 at 05:17:03PM -0400, Kurt Feltenberger wrote:
>I've been following the trains you've posted and one thing stands out to me;
>they're awfully slow compared to real examples. The Union Pacific Big Boy
>4-8-8-4, was more than three times as fast and had about 2/3ds the kW.
...but it was only hauling around 3,600 short tons rather than 12,000.
Maybe that makes the difference?
The Union Pacific Big Boy routinely pulled 8727 short tons over the
Wasatch Range...that's some pretty rugged country to pull that much
freight at 60+ MPH. But beyond the weight, if you look at the kW rating
for the engine and compare those, you have one that has X kW and does
~25mph pulling Y mass, and then you have another has 2/3'ds the kW,
pulls 2/3'ds the mass, and yet does it three times faster.
--
Kurt Feltenberger
[email protected]/[email protected]
“Before today, I was scared to live, after today, I'm scared I'm not
living enough." - Me
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